Stove-grate



LEARN; sToVB GRATE.

(No Model.)

Patented.Octlv 30, 1.883.

UNTTED STATES PATENT 'OEEICi-..

JoHN HAHN, or READING,` PENNSYLVANIA.

sroV'E-GRATE.

SPECIFICATION forming part of Letters Patent No. 287,537, dated October 30, 1883.

To all whom,l it may concern:

Be-it known that I, JOHN HAHN, a citizen of the. United States, a resident of the city of Reading, county of Berks, State of Pennsylvania, have invented a new and useful Improvement in Stove-Grates, of which the following is a specification.

This invention relates more particularly to the grates used in connection with cookingstoves, ranges, Sac., and is intended to furnish a simple and readily-operated cleaning device therewith. I attain this result by the adoption of a revolving or oscillating floor-grate for the the revolvingoor-grate provided with vibrators and cleaners and fixed front grate; Fig. 2, the same sectional elevation,lshowing the floor-grate inthe act of revolving, havin g raised the rear grate, and showing the cleaners passing throughY the bar-space of the same; Fig. 3, a partial plan of the revolving iioor-grate, showing the vibrators and cleaning-bars; Fig. 4, a partial outside elevation of the -fire-pot,

, showing a device for retaining the floor-grate in place; Fig. 5, a modiication of the floorgrat'e, showing a sub-iloo'r-grate vibratory on its axis, in combination with the rear vibratory grate and the oscillating iioor-grate, the latter having vibratory bars, to operate the front or rear grates; Fig. 6, a section of the same arrangement, lshowing the front and oor grates dumped; Fig. 7 ,a plan showing the front subgrate and the hoor-grates as adapted tothe same. 'f

A is the end of the lire-pot; Af and A2, stops` to limit the front and rear grates in their movements; B, afixed front grate of the usual character; C, back or rear grate; C, axis or journals of same, having their bearing in suitable Application filed March 7, 1883.

(No model.)

holes providedtherefor; C2, longitudinal bars; g

D, revolving and oscillating floor-grate; D D', longitudinal bars; D2, transvers bars and cleaners; D3, vibrators, D journals D5, square shank for operating the grate 5 D6, vibrators for subiioor-grate; D,vibrators for rear grate; E, subiioor-grate; E', transverse bars; E2, axes of of the rear bar, to prevent the burning of the same. It is not necessary that more than three vibrators, D3, be placed in the floor-grate. 'Ihe bars D which pass between the bars C of the rear grate will alternate therewith.

In the arrangement shown in Fig. 5 the bars of the vibratory front and rear'grates, E and C,

correspond with those of the oscillating grate D, the rear bars thereof being widened at two or more places, D7, to give a full bearing beneath the bars C when brought in contact therel with.

' 'The operation of the device is as follows: If the contents of the fire-pot -is to be discharged into the ash-pit, the grates are placed in the position shown in Figs. 2 and6,when the fire-pot is quickly emptied. When the fire-pot is filled with burning coal, and it is desired to clean the grates, an oscillatory movement is imparted to the floor-grate,which,'being transferred to the 'rear grate, C, causes the ashes to slide down said grate andpass into the ash-pit through thek bars; or when the sub-grate E is used the front and rear grates will be alternately lifted, vi-

brated, or agitated, with the same result; or, the fuel being in an incandescent state, the grate D may be revolved, as shown in Figs. vl and 2, when the cinders will drop into the ash-'pit in` front ofgrate D, and the cinders on' grate C will be thrown forward by the cleaners Dl and pass also yinto/the ash-pit. This may be done without dropping the fire by attention to the state of the same before operating the hoor-grate. Iii-Fig. G'the floor-grate only oscillates, the fingers D6 picking up the sub-grate ICO E and returning the same to its proper position by throwing` down the lock F over the shank D5 of the iioongratel This improvement gives a ready means of partially or fully cleaning the bars,or of dumping the contents of the ire-pot into the ash-pit. It is a simple, cheap, and reliable substitute for serrated, interlocking, and combined revol ving fire-pot floor-gratos.

Having` shown the construction of my grates, their adaptation to the iire-pots, and their a'dvantages, ll desire to secure by Letters Patent the following claims thereon:

l. The combination of a rear vibratory grate, a iixed front grate, and arcvolving or oscillatin g door-grate, as describedvith the rear grate by a series of two or more vibrators and bars alternative with the spaces of said rear gratebars, stop A', shank D", and lock F, whereby the combination may he locked in position or released for cleaning, substantially as shown, and for the purpose'sct forth.

2. The combination of a rear vihratory grate, ixed front grate, and a vibratory sub-iioorgrate, with an oscillating Hoor-grate provided with journals D, shank D5, one or more vibra tors, D, stops A A2, and lock F, substantially as shown, and for the purpose described.

3. A dumping revolving floor-grate, provided with double longitudinal bars, forming an air-passage between the same, having attached thereto a series of cleaning-bars, opposite thc spaces of the rear vibratory grate, and one or more vibrators in line with the bars of said rear grate, in combination therewith and with lock F,forthe purpose described, as shown,and substantially;T as specified.

4. A rear pivoted vibratory grate, C, arranged in combination with a revolving and oscillating floongrate, D, provided with vibrat-ors and cleaner-bars, to be agitated and cleared from ashes and cinders in the nia-nner and for the purpose described.

5. A front subfloor-grate to a iire-pot, bcing pivotal thereto, in combination with an oscillating central oor-grate and pivotal roar grate, as described, shown, and for the purpose set forth.

J OHN HAHN. lVitnesses:

F. PIERCE HUMMEL, GARRETT B. STEVENS. 

